期刊
NANOSCALE
卷 5, 期 5, 页码 1797-1802出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr34028g
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- PolyU [1-ZV6X, G-YX4P]
The luminescent capability of graphene quantum dots (GQDs) was investigated and compared with that of carbon nanodots (C-dots) obtained from the same functionalization process. It was found that the optical gain of GQDs is higher than that of C-dots due to their geometrical advantages such as larger surface area to volume ratio and smaller volume. Under optical excitation at 266 nm, lasing emission was observed from a Fabry-Perot cavity containing a mixture of GQDs and TiO2 nanoparticles dispersed inside ethanol.
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